Frets on Fire

Frets on Fire is a music playing video game. It is playable on Microsoft Windows, Mac OS X, and Linux. The player presses buttons in time to coloured markers, which appear on-screen, the markers are matched with the rhythm of the music. Frets on Fire can be played by using a keyboard by pressing the fret buttons and pick buttons, although there is support for joysticks, meaning that with the appropriate adapter and/or software, various guitar-type controllers can be used as well.

The game is written in the Python programming language, and is licensed under the GNU General Public License, although the game incorporates other free and open-source code under other licenses. The game's included song files and some internal fonts are proprietary, and their redistribution is not permitted outside of the Frets on Fire executable.

Frets on Fire has received generally positive reviews in a variety of publications. Released for competition at Assembly, it won first place among its competition. Because of the cross-platform nature of the game, it has garnered fans from both Linux and Mac.

The University of Nevada developed a modified version of Frets on Fire called Blind Hero which uses a haptic glove to make this game accessible to players who are visually impaired.